@Meandhim @perianjay I'm thinking of getting a base coat too before I leave...mainly because I still have tan lines from 2 years ago (i'm not even kidding). I think I mentioned my 'headlights'(as Sean likes to call them) at our last GTA meet up. They just never see the light of day and the tan lines will show with my dress.
I also have this really great sunscreen it's only SPF 30 but I tested it out in Sept when I was there and I didn't burn at all and I usually burn pretty easily. I was a lobster at my cousin's DW. The ingredients are also really safe to use (one of the few that they let into ecological parks like Xcaret). It's a little pricier but I think it's worth it not to get a burn. Let me know if you want more info and I can PM you the details!